Crepey skin on your arms: what causes it and what can help
Crepey arm skin is thin and finely crinkled, mostly from years of sun, and Cleveland Clinic says it usually starts in your 40s. Lotions with hydroxy acids, retinol and sunscreen help texture. Two ultrasound devices hold FDA clearances that name the upper arms. Karisma offers no arm tightening: Kay uses XERF on the face and neck only.
Published · Written by Kay Woodson · Results vary.Why do arms turn crepey?
Cleveland Clinic names two places where crepey skin shows most: under the eyes and on the arms. The usual cause is ultraviolet light, which breaks down elastin, the fibers that let skin stretch and recover. Arms collect that light for decades, often with no sunscreen on them at all.
Other things add to it. Age, dry skin and weight that goes down and back up all play a part, and Cleveland Clinic names long-term prednisone as one medicine that can thin skin this way. Skin also makes less oil with age, which weakens its protective barrier. Most people notice it in their 40s. Frequent tanning beds or a large weight loss and regain can bring it on as early as the 20s.
Crepey, loose, or both?
Hold one arm out at shoulder height, palm down, then look at the skin on top and underneath. The answer decides where help comes from.
| What you see | What is going on | Where help usually comes from |
|---|---|---|
| Fine crinkles on the forearm or outer upper arm, skin otherwise firm | Sun-thinned skin with worn elastin | Daily sunscreen, moisturizer with hydroxy acids, retinol |
| Crinkles plus mild softness under the upper arm | Thin skin with early loss of firmness | Home care, then an energy device if you want more |
| Skin that hangs and swings under the upper arm | Extra skin, often with fat | An arm lift by a plastic surgeon |
Which arm treatments do what?
Rows marked "not offered" are not available at Karisma.
| Option | What it can do | Evidence or clearance | At Karisma |
|---|---|---|---|
| Lotion with lactic, glycolic or salicylic acid, or hyaluronic acid | Hydrates and smooths the surface | Cleveland Clinic lists these first | At home |
| Retinol cream on the arms | Helps restore elasticity over months. Dryness and flaking at first | Cleveland Clinic | At home |
| Sunscreen and sun-protective sleeves | Stops new damage | Cleveland Clinic: SPF 30 at least, 50 or higher preferred | At home |
| Arm workouts | Build muscle under the skin | ASPS: sagging under the upper arm "cannot be corrected through exercise" | At home |
| Ultherapy | Focused ultrasound below the surface | FDA 510(k) K243035 (2025) names skin laxity on the front and back of the arms | Not offered |
| Sofwave | Ultrasound with a different design | Clearance for upper arm laxity announced December 26, 2023. Maker's study: 46 people, 2 treatments | Not offered |
| Fillers and biostimulators such as PLLA | Add volume or prompt collagen | Cleveland Clinic | Not offered |
| XERF | Radiofrequency warmth in deeper skin. Results vary | No published arm study as of October 29, 2026 | Face and neck only, not arms |
| Arm lift (brachioplasty) | Removes sagging skin and tightens the tissue beneath | ASPS | Not offered. Plastic surgeon |
Ultherapy wording from the FDA indications for use. Sofwave figures are the company's own. Karisma offers XERF for the face and neck only.
What is known, and what is not
XERF's FDA clearance, 510(k) K251327 from August 2025, covers electrocoagulation and hemostasis in dermatologic and general surgical procedures. It names no body area and no tightening indication. Every published human study so far treated the face and neck. The larger one, by Weiss and colleagues in March 2026, followed 39 people and enrolled skin types I to IV only, and its authors say results for types V and VI are uncertain. If your skin is deep brown, the data do not cover you yet. Ultherapy and Sofwave, by contrast, hold clearances that name the arms. Our XERF body guide covers the device details.
Home care alone may be enough if
Your arms are crinkly but firm, and what bothers you is texture in short sleeves. Give lotion, retinol and sunscreen a few months of steady use before you judge them.
Talk to a plastic surgeon if
Skin under the upper arm hangs or swings, often after a large weight loss. That is extra skin. No lotion, workout or device removes it, and Kay will tell you so at a consultation.
Does Karisma treat crepey arms?
Honestly, no device treatment for arms. Kay offers XERF for the face and neck only, the areas its published studies cover, and keeps it there. For crepey arms, the steady home routine above is where to start.
If a provider elsewhere offers a device on your arms, ask how many arms they have treated, what changed for those clients, and whether they can show dated photos taken with written consent.
Questions about crepey arms
Does anything really work for crepey arms?
Yes, within limits. Lotion, retinol and sunscreen make texture look better over months. Energy devices may help mild looseness, and results vary. Skin that hangs needs surgery.
Can crepey skin on arms be reversed naturally?
Partly. Moisture and retinol improve how the surface looks, and sun protection stops new damage. Sun-worn elastin does not fully recover, so expect softer texture, not the arms you had at 25.
Which treatment helps crepey arms most?
It depends on the cause. Crinkly but firm skin responds to home care. Mild looseness is where devices come in, and Ultherapy and Sofwave hold arm clearances. Hanging skin is a surgical question.
Can a disease cause crepey skin?
Cleveland Clinic names no disease, but it does name long-term prednisone. If your skin changed quickly or along with other symptoms, see your doctor before any cosmetic treatment.
Is XERF FDA-cleared for arms?
Its clearance names no body area. It is cleared for electrocoagulation and hemostasis, not for tightening any area, and no published study has looked at arms yet.
- What's causing your crepey skin and how can you fix it?, Cleveland Clinic, June 10, 2024, read October 29, 2026
- FDA 510(k) K243035, Ulthera System, indications for use, read October 29, 2026
- Sofwave receives FDA clearance for improvement of the appearance of skin laxity on the upper arm, Sofwave, December 26, 2023
- Arm lift, American Society of Plastic Surgeons, read October 29, 2026
- FDA 510(k) K251327, XERF, Lutronic Corporation, cleared August 11, 2025
- Weiss RA et al. Dual-frequency noninvasive monopolar radiofrequency for facial laxity, a prospective multicenter study. Cureus, March 2, 2026
- Erlich, Dahan, Wolf. Retrospective evaluation of XERF. Lasers in Medical Science, August 18, 2026
- Karisma Esthetics booking page and prices, GlossGenius, checked October 29, 2026